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Apex
2 to 60 g · ABEC 9
€27,95Set of 2
Spool bearings for Shimano Curado K 300 (2020)
Made as 300 / 301, in PG and HG.
The Shimano Curado K 300 (2020) runs on two spool bearings: 5x11x4 + 3x10x4. Every set below is this exact pair.
Spool bearings5x11x4 + 3x10x4
Our pick: Edge
The all-rounder for this reel: ceramic speed with the durability of steel.
Our pick for this reel
Edge
5 to 100 g · ABEC 9
€22,95Set of 2
Core
8 to 200 g · ABEC 5
€17,95Set of 2
Needed for this reel
The spool bearing sits behind a pin. This tool pushes it out without damage.
€19,95
Versions of this reel
All versions of the Shimano Curado K 300 (2020) take the same spool bearings. You find the model code on the reel foot or on the box. On Shimano reels the number tells you the hand: 200 is right hand, 201 is left hand.
| Version | Size | Hand | Gear | Model code | Maker code |
|---|---|---|---|---|---|
| 300 | 300 | right hand | Normal | CU300K | 51RL391300X |
| 301 | 300 | left hand | Normal | CU301K | 51RL391301X |
| 301 PG | 300 | left hand | PG | CU301PGK | |
| 300 HG | 300 | right hand | HG | CU300HGK | 51RL392300X |
| 301 HG | 300 | left hand | HG | CU301HGK | 51RL392301X |
Three classes. Which one is yours?
Our pick follows what your reel is built for.
- Apex
Maximum performance. The best bearings we make for reels built for light lures.
- 2 to 60 g
- ABEC 9
- S30 ceramic
- Edge
The all-rounder. Right between performance and durability, for most bass, zander and pike setups.
- 5 to 100 g
- ABEC 9
- S25 hybrid ceramic
- Core
Built to take a beating. Full stainless and shielded, made for big bait anglers and hard daily use.
- 8 to 200 g
- ABEC 5
- Stainless steel
Lure weight is a recommendation, not a load limit
The ranges show what we recommend each class for, based on what your reel is built for. The load capacity of the bearings goes far beyond that: Apex handles up to 150 g, Edge over 250 g, Core over 500 g.
Your reel sets the limit
How much load a reel can take is decided by the reel itself: spool, gears, drag and body. The bearings play a minor part. The right bearings help you cast lighter lures further, but they do not raise the load capacity of your reel.
Other Curado reels
Dot = our pick:ApexEdgeCore
Curado M (2025)150 / 151 · MG, HG, XG3x10x4 + 3x10x4
Curado M (2023)200 / 201 · HG, XG3x10x4 + 3x10x4
Curado DC (2022)200 / 201 · HG, XG3x10x4 + 3x10x4
Curado BFS (2021)XG3x7x3 + 3x7x3
Curado MGL 150 (2021)150 / 151 · HG, XG3x10x4 + 3x10x4
Curado MGL K 70 (2020)70 / 71 · HG, XG3x10x4 + 3x10x4
Curado DC (2018)150 / 151 · HG, XG3x10x4 + 3x10x4
Curado K (2017)200 / 201 · PG, HG, XG3x10x4 + 3x10x4
Curado 70 (2016)70 / 71 · HG, XG3x10x4 + 3x10x4
What anglers say
What anglers say after the swap.
-
The spool just keeps spinning
“Thought there was a motor built in, it just does not stop spinning.”
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Better than new
“Fitted my old Quantum KVD with new bearings. The thing performs better than new. I am thrilled.”
-
A different league from stock
“The result is a reel from another planet! No comparison to the factory condition, you will not regret this purchase.”
30-Day Performance Boost Guarantee
If you do not feel a clear difference in spool start-up, casting or overall performance within 30 days, send the bearings back. Valid for all three classes.